Lubricating and maintaining device for gearbox of wind generating set

Abstract

The utility model discloses a lubrication maintenance device for a gearbox of a wind generating set, which relates to the technical field of maintenance of wind driven generators and comprises an oil storage tank, a pumping component and an oil return pipe are mounted on the oil storage tank, the pumping component is used for pumping lubricating oil in the oil storage tank into the gearbox, and the middle section of the oil return pipe is M-shaped. The other end of the oil return pipe is provided with a filtering assembly and a bottom plate. The bottom end of the oil storage tank is installed on the bottom plate. According to the utility model, the design structure is reasonable, and the iron removal component, namely the purification tank with the electromagnet, is additionally arranged, so that scrap iron in lubricating oil can be removed before the lubricating oil enters the filter box, the scrap iron can be prevented from damaging the filter screen, and the service life of the filter component is prolonged; and the lubricating oil can be ensured to be in a relatively pure state before entering the gear box, so that the cleanliness of the lubricating oil is further improved, the lubricating performance of the lubricating oil is enhanced, gear wear is reduced, and the service life of internal parts of the gear box is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of wind generator maintenance, in particular to a lubrication maintenance device for a gear box of a wind generator set. Background Art

[0002] A wind turbine generator set includes a wind rotor and a generator; the wind rotor contains blades, a hub, reinforcements, etc.; it has the functions of blades rotating under wind power to generate electricity and the generator head rotating. The wind power supply consists of a wind turbine generator set, a tower supporting the generator set, a battery charge controller, an inverter, an unloader, a grid connection controller, a battery pack, etc.

[0003] Chinese patent publication number CN217401668U discloses a lubrication and maintenance device for a gearbox of a wind turbine generator set. The device incorporates an oil reflux mechanism that allows the lubricating oil in the gearbox to remain in a flowing state. Furthermore, the device continuously filters the oil during its continuous flow, filtering out dust and impurities in the oil. This ensures that the oil entering the gearbox remains pure, ensuring the lubricating effect of the lubricating oil and extending the service life of the gears in the gearbox, thereby improving the practicality of the device.

[0004] The above solution uses a circulating filtration method to clean the lubricating oil. While this improves the lubricating oil's purity, the gears within the gearbox are prone to generating iron filings after prolonged use. These iron filings, mixed with the lubricating oil, can exacerbate damage to the filter, shortening the service life of the entire maintenance device. Furthermore, while the lubricating oil cools the gearbox's internal structures during use, the heat within the lubricating oil is difficult to dissipate, preventing the gearbox from cooling effectively. To address this issue, we provide a lubrication and maintenance device for wind turbine gearboxes. Utility Model Content

[0005] 1) Technical problems solved

[0006] The purpose of the utility model is to make up for the deficiencies of the prior art and to provide a lubrication and maintenance device for a gearbox of a wind turbine generator set.

[0007] 2) Technical solution

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a lubrication and maintenance device for a gearbox of a wind turbine generator set, comprising:

[0009] An oil storage tank is provided with a pumping assembly for pumping the lubricating oil in the oil storage tank into the gear box.

[0010] The oil return pipe has an M-shaped middle section, one end of the oil return pipe is fixedly connected to the oil storage tank, and the other end of the oil return pipe is provided with a filter assembly.

[0011] A base plate is provided on which the bottom end of the oil storage tank is mounted. A heat dissipation component for dissipating heat from the oil return pipe is provided on the base plate.

[0012] The iron removal component is arranged at the front end of the filter component. The iron removal component includes a purification tank. An electromagnet is installed on the purification tank. A slag discharge pipe is fixedly connected to the bottom surface of the purification tank. A recovery pipe is fixedly connected to the purification tank.

[0013] Furthermore, the pumping assembly includes an oil pump installed on the oil storage tank, an oil extraction pipe is installed at the input end of the oil pump, and an oil discharge pipe is installed at the output end of the oil pump. The end of the oil extraction pipe away from the oil pump passes through the top surface of the oil storage tank and extends into the oil storage tank.

[0014] Furthermore, the filter assembly includes a filter box fixedly connected to the oil return pipe, the filter box is provided with a groove, and a filter screen is installed in the groove.

[0015] Furthermore, a sealing cover is threadedly connected to the top of the filter box, and the top of the filter screen rests on the sealing cover.

[0016] Furthermore, a flow pipe is fixedly connected to the purification tank, and one end of the flow pipe away from the purification tank is fixedly connected to the filter box.

[0017] Furthermore, the heat dissipation assembly includes a fixing base mounted on the base plate, a reduction motor is mounted on the fixing base, and fan blades are mounted on the output shaft of the reduction motor.

[0018] Furthermore, the oil return pipe is fixedly connected to heat conducting plates arranged at equal distances, and the bottom ends of the heat conducting plates are fixedly connected to the bottom plate.

[0019] 3) Beneficial effects:

[0020] Compared with the existing technology, the lubrication and maintenance device for the gearbox of a wind turbine generator set has the following beneficial effects:

[0021] 1. The utility model adds an iron removal component, that is, a purification tank with an electromagnet, which can remove iron filings from the lubricating oil before it enters the filter box. This not only prevents iron filings from damaging the filter screen and extends the service life of the filter component, but also ensures that the lubricating oil is in a relatively pure state before entering the gear box, further improving the cleanliness of the lubricating oil, enhancing its lubricating performance, reducing gear wear, and extending the service life of the internal components of the gear box.

[0022] 2. The utility model provides a heat dissipation component outside the oil return pipe, combined with the design of a heat conduction plate, which can effectively transfer the heat in the lubricating oil to the air, thereby achieving rapid cooling of the lubricating oil. This not only helps to maintain good fluidity of the lubricating oil and prevent the viscosity of the lubricating oil or performance degradation caused by high temperature, but also helps to keep the gearbox within a suitable operating temperature range, reduces the negative impact of overheating, and improves the overall operating efficiency and stability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The three-dimensional Figure 1 ;

[0024] Figure 2 The three-dimensional Figure 2 ;

[0025] Figure 3 It is a structural diagram of the filter component and the iron removal component of the utility model.

[0026] In the figure: 1. Oil storage tank; 2. Oil pump; 3. Oil extraction pipe; 4. Oil discharge pipe; 5. Oil return pipe; 6. Heat conduction plate; 7. Fixing seat; 8. Reducer motor; 9. Fan blade; 10. Filter box; 11. Sealing cover; 12. Circulation pipe; 13. Purification tank; 14. Recovery pipe; 15. Electromagnet; 16. Slag discharge pipe; 17. Bottom plate; 18. Groove; 19. Filter screen. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] like Figure 1-3 As shown, the utility model provides a technical solution: a lubrication maintenance device for a gearbox of a wind turbine generator set, comprising an oil storage tank 1, an oil return pipe 5, a bottom plate 17 and an iron removal assembly.

[0029] The oil tank 1 is equipped with a pumping assembly for pumping the lubricating oil in the oil tank 1 into the gear box. The pumping assembly includes an oil pump 2 installed on the oil tank 1, an oil extraction pipe 3 is installed at the input end of the oil pump 2, and an oil discharge pipe 4 is installed at the output end of the oil pump 2. The end of the oil extraction pipe 3 away from the oil pump 2 passes through the top surface of the oil tank 1 and extends into the oil tank 1. After the oil pump 2 is started, the lubricating oil in the oil tank 1 can be transported to the gear box through the oil extraction pipe 3 and the oil discharge pipe 4.

[0030] The middle section of the oil return pipe 5 is M-shaped. One end of the oil return pipe 5 is fixedly connected to the oil storage tank 1. The other end of the oil return pipe 5 is provided with a filter assembly. The filter assembly includes a filter box 10 fixedly connected to the oil return pipe 5. The filter box 10 is provided with a groove 18, and a filter screen 19 is installed in the groove 18.

[0031] The space inside the filter box 10 can be separated into a filter chamber and a purification chamber by a filter screen 19. The refluxed lubricating oil will enter the filter box 10 and be filtered through the filter screen 19, and impurities will be collected on the filter screen 19. The filtered lubricating oil will flow back to the oil storage tank 1 through the return oil pipe 5.

[0032] The top of the filter box 10 is threadedly connected to a cover 11 , and the top of the filter screen 19 rests on the cover 11 . The top of the filter box 10 is an opening, and the opening of the cover 11 can be sealed by the cover 11 .

[0033] The bottom end of the oil storage tank 1 is mounted on a base plate 17, on which a heat dissipation assembly is provided for dissipating heat from the return oil pipe 5. The heat dissipation assembly includes a fixing seat 7 mounted on the base plate 17, on which a reduction motor 8 is mounted, and on the output shaft of the reduction motor 8 a fan blade 9 is mounted. The fan blade 9 is driven to rotate by the output shaft of the reduction motor 8 to generate wind, which is blown onto the outer surface of the return oil pipe 5, thereby cooling the lubricating oil flowing in the return oil pipe 5.

[0034] The return oil pipe 5 is fixedly connected to heat conducting plates 6 arranged at equal distances, and the bottom ends of the heat conducting plates 6 are fixedly connected to the bottom plate 17. The heat conducting plates 6 can conduct heat and increase the contact area between heat and air in the return oil pipe 5, thereby accelerating the cooling efficiency of the lubricating oil.

[0035] The iron removal assembly is arranged at the front end of the filter assembly, and the iron removal assembly includes a purification tank 13, an electromagnet 15 is installed on the purification tank 13, a slag discharge pipe 16 is fixedly connected to the bottom surface of the purification tank 13, and a recovery pipe 14 is fixedly connected to the purification tank 13.

[0036] The magnetic force generated by the electromagnet 15 after startup can adsorb the iron filings in the lubricating oil in the purification tank 13 , thereby purifying the lubricating oil and preventing the iron filings from affecting the filter 19 .

[0037] The purification tank 13 is fixedly connected to a flow pipe 12 , and one end of the flow pipe 12 away from the purification tank 13 is fixedly connected to the filter box 10 . The lubricating oil purified in the purification tank 13 is transported to the filter box 10 through the flow pipe 12 for filtration.

[0038] It should be noted that, in this document, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate positions or location relationships based on the positions or location relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention; the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "fixed", "installed", "connected", and "connected" should be understood in a broad sense. For example, "installed" can mean a fixed connection, a detachable connection, or an integral connection; "connected" can mean a mechanical connection or an electrical connection; "connected" can mean a direct connection, an indirect connection through an intermediate medium, or the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lubrication and maintenance device for a wind turbine gearbox, characterized in that: include: An oil storage tank (1), wherein the oil storage tank (1) is provided with a pumping assembly for pumping lubricating oil in the oil storage tank (1) into the gear box; An oil return pipe (5), wherein the middle section of the oil return pipe (5) is M-shaped, one end of the oil return pipe (5) is fixedly connected to the oil storage tank (1), and the other end of the oil return pipe (5) is provided with a filter assembly; A bottom plate (17), the bottom end of the oil storage tank (1) is mounted on the bottom plate (17), and a heat dissipation component for dissipating heat from the oil return pipe (5) is provided on the bottom plate (17); The iron removal component is arranged at the front end of the filter component, and the iron removal component includes a purification tank (13), an electromagnet (15) is installed on the purification tank (13), a slag discharge pipe (16) is fixedly connected to the bottom surface of the purification tank (13), and a recovery pipe (14) is fixedly connected to the purification tank (13).

2. A lubrication and maintenance device for a wind turbine gearbox according to claim 1, characterized in that: The pumping assembly comprises an oil pump (2) mounted on an oil storage tank (1); an oil extraction pipe (3) is mounted on the input end of the oil pump (2); an oil discharge pipe (4) is mounted on the output end of the oil pump (2); and an end of the oil extraction pipe (3) away from the oil pump (2) passes through the top surface of the oil storage tank (1) and extends into the oil storage tank (1).

3. The lubrication and maintenance device for a wind turbine gearbox according to claim 1, characterized in that: The filter assembly comprises a filter box (10) fixedly connected to the oil return pipe (5); a groove (18) is provided on the filter box (10); and a filter screen (19) is installed in the groove (18).

4. The lubrication and maintenance device for a wind turbine gearbox according to claim 3, characterized in that: The top end of the filter box (10) is threadedly connected to a cover (11), and the top end of the filter screen (19) rests against the cover (11).

5. The lubrication and maintenance device for a wind turbine gearbox according to claim 3, characterized in that: The purification tank (13) is fixedly connected to a circulation pipe (12), and one end of the circulation pipe (12) away from the purification tank (13) is fixedly connected to the filter box (10).

6. The lubrication and maintenance device for a wind turbine gearbox according to claim 1, characterized in that: The heat dissipation assembly comprises a fixing seat (7) mounted on a bottom plate (17), a reduction motor (8) is mounted on the fixing seat (7), and a fan blade (9) is mounted on the output shaft of the reduction motor (8).

7. The lubrication and maintenance device for a wind turbine gearbox according to claim 1, characterized in that: The oil return pipe (5) is fixedly connected to heat conducting plates (6) arranged at equal distances, and the bottom ends of the heat conducting plates (6) are fixedly connected to the bottom plate (17).

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